From 36d22815878186285825511358e66a52d2bf95e4 Mon Sep 17 00:00:00 2001
From: Michael Dilger <mike@mikedilger.com>
Date: Fri, 16 Feb 2024 15:54:47 +1300
Subject: [PATCH] NIP-49 test vector for unicode normalization (#1054)

* NIP-49 [breaking]: password normalized to unicode NFKC format

* Test vector for unicode normalization
---
 49.md | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/49.md b/49.md
index addcf74..da58ba2 100644
--- a/49.md
+++ b/49.md
@@ -78,6 +78,22 @@ The decryption process operates in the reverse.
 Test Data
 ---------
 
+## Password Unicode Normalization
+
+The following password input: "ÅΩẛ̣"
+- Unicode Codepoints: U+212B U+2126 U+1E9B U+0323
+- UTF-8 bytes: [0xE2, 0x84, 0xAB, 0xE2, 0x84, 0xA6, 0xE1, 0xBA, 0x9B, 0xCC, 0xA3]
+
+Should be converted into the unicode normalized NFKC format prior to use in scrypt: "ÅΩẛ̣"
+- Unicode Codepoints: U+00C5 U+03A9 U+1E69
+- UTF-8 bytes: [0xC3, 0x85, 0xCE, 0xA9, 0xE1, 0xB9, 0xA9]
+
+## Encryption
+
+The encryption process is non-deterministic due to the random nonce.
+
+## Decryption
+
 The following encrypted private key:
 
 `ncryptsec1qgg9947rlpvqu76pj5ecreduf9jxhselq2nae2kghhvd5g7dgjtcxfqtd67p9m0w57lspw8gsq6yphnm8623nsl8xn9j4jdzz84zm3frztj3z7s35vpzmqf6ksu8r89qk5z2zxfmu5gv8th8wclt0h4p`
@@ -86,8 +102,6 @@ When decrypted with password='nostr' and log_n=16 yields the following hex-encod
 
 `3501454135014541350145413501453fefb02227e449e57cf4d3a3ce05378683`
 
-The reverse process is non-deterministic due to the random nonce.
-
 Discussion
 ----------